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    Subject[PATCH AUTOSEL 6.3 43/67] arm64/mm: mark private VM_FAULT_X defines as vm_fault_t
    Date
    From: Min-Hua Chen <minhuadotchen@gmail.com>

    [ Upstream commit d91d580878064b880f3574ac35b98d8b70ee8620 ]

    This patch fixes several sparse warnings for fault.c:

    arch/arm64/mm/fault.c:493:24: sparse: warning: incorrect type in return expression (different base types)
    arch/arm64/mm/fault.c:493:24: sparse: expected restricted vm_fault_t
    arch/arm64/mm/fault.c:493:24: sparse: got int
    arch/arm64/mm/fault.c:501:32: sparse: warning: incorrect type in return expression (different base types)
    arch/arm64/mm/fault.c:501:32: sparse: expected restricted vm_fault_t
    arch/arm64/mm/fault.c:501:32: sparse: got int
    arch/arm64/mm/fault.c:503:32: sparse: warning: incorrect type in return expression (different base types)
    arch/arm64/mm/fault.c:503:32: sparse: expected restricted vm_fault_t
    arch/arm64/mm/fault.c:503:32: sparse: got int
    arch/arm64/mm/fault.c:511:24: sparse: warning: incorrect type in return expression (different base types)
    arch/arm64/mm/fault.c:511:24: sparse: expected restricted vm_fault_t
    arch/arm64/mm/fault.c:511:24: sparse: got int
    arch/arm64/mm/fault.c:670:13: sparse: warning: restricted vm_fault_t degrades to integer
    arch/arm64/mm/fault.c:670:13: sparse: warning: restricted vm_fault_t degrades to integer
    arch/arm64/mm/fault.c:713:39: sparse: warning: restricted vm_fault_t degrades to integer

    Reported-by: kernel test robot <lkp@intel.com>
    Signed-off-by: Min-Hua Chen <minhuadotchen@gmail.com>
    Link: https://lore.kernel.org/r/20230502151909.128810-1-minhuadotchen@gmail.com
    Signed-off-by: Will Deacon <will@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/arm64/mm/fault.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
    index f4cb0f85ccf49..d1136259b7b85 100644
    --- a/arch/arm64/mm/fault.c
    +++ b/arch/arm64/mm/fault.c
    @@ -480,8 +480,8 @@ static void do_bad_area(unsigned long far, unsigned long esr,
    }
    }

    -#define VM_FAULT_BADMAP 0x010000
    -#define VM_FAULT_BADACCESS 0x020000
    +#define VM_FAULT_BADMAP ((__force vm_fault_t)0x010000)
    +#define VM_FAULT_BADACCESS ((__force vm_fault_t)0x020000)

    static vm_fault_t __do_page_fault(struct mm_struct *mm, unsigned long addr,
    unsigned int mm_flags, unsigned long vm_flags,
    --
    2.39.2
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